What does C7 mean in Christmas lights?

By Kelli Harvey | Updated Aug 24, 2021. Christmas Light Bulbs. C7 & C9 light bulbs are the most widely recognized Christmas lights. C7 bulbs have E12 Candelabra bases while C9 bulbs have E17 Intermediate bases. Each bulb base should be paired with a light socket of the corresponding size.

Can you put C7 lights on a Christmas tree?

“C7s won’t burn your tree down,” he says approvingly, as if that is a selling point rather than a basic minimum requirement. “If C9s” – a larger bulb – “weren’t so hot, I’d still use those.

What is the difference between C6 and C7 Christmas lights?

C6 lights are the smallest of the strawberry-shaped lights that many consider the “traditional Christmas bulb” shape. The bulbs are generally 3/4 inch in diameter and 1 1/8 inches tall. C7 lights have the same strawberry shape as C6, but are slightly larger. They measure 1 inch in diameter and 1 1/2 inches tall.

What does C6 Christmas lights mean?

C6 lights (the C stands for cone Size) are generally ¾” round and 1 ⅛” tall. They have bulbs designed to illuminate Christmas trees or smaller pieces on your property. They can be used for perimeter lighting when placed strategically and densely, but ultimately don’t burn as bright as larger options.

Should I get C7 or C9 Christmas lights?

Cord Socket Size – When it comes to the socket base size, you can choose between C7 or C9. For most structural perimeter lighting, C9s are the most commonly used. If lighting displays or small structures, then C7s work well.

Are C7 lights a fire hazard?

Do C7 and C9 bulbs get hot with use? The older, incandescent bulbs do get hot, which makes them a fire hazard when used on or near flammable or delicate holiday decorations.

How many C7 bulbs do I need for a Christmas tree?

How Many Lights Do I Need For An Indoor Christmas Tree?

Should I use C7 or C9 lights?

How many C7 lights do I need for a 7 foot tree?

For live trees and shrubs, use 100 mini lights or 50 C7 lights for every vertical foot. On thin trees, you can use half that number of lights per vertical foot. Depending on your preferences, you may want a brighter tree, in which case you can double the number of recommended lights.

Which is bigger C9 or C7?

The Main Difference: Size! C7 Bulbs are much smaller than the larger C9 Bulb. C-9’s are longer, wider, and fit into a bigger socket. As you can see from the photographs above, the C7 Bulb is usually 2-1/8in in length and 7/8in in width. In comparison, the C9 Bulb measures 2-7/8in in length and 1-1/8in in width.

Can you replace C7 bulbs with LED?

C7 LED Bulbs Frequently Asked Questions. Do you have an LED replacement bulb that will fit into my C7 (E12) Christmas light stringer? Yes, these C7 style LED bulbs are similar in size and shape to a traditional C7 light bulb. You can use them in any C7 cord that is in good electrical repair.

Do C7 and C9 bulbs interchangeable?

You can’t fit a C9 Bulb into a C7 Socket! Typically, C7 bulbs are made on an E12 sized base. C9 bulbs are made on an E17 sized base. They are so often manufactured in-line together that the terms for C7/E12 and C9/E17 are interchangeably misused.

Can C7 bulbs be used on an artificial tree?

Artificial trees with PVC or Mylar needles are not included in this warning, so it is ok to use on these types of trees.

Can you use C7 lights on an artificial tree?

Can you mix C7 and C9 bulbs?

The short answer is yes. But if you place C7 and C9 LED replacements bulbs next to incandescent bulbs, the light string’s colors will glow differently and will appear “off.” You cannot substitute LED mini lights on an incandescent light string because LEDs require a much lower wattage than incandescent mini lights.